China factory Motor baturi waya abin doki na USB Majalisar

1. Ya kamata saman colloid na waya ya zama santsi, lebur, launi iri ɗaya, ba tare da lalacewar injiniya ba, kuma a bayyane a cikin bugu.

2. Colloid na waya dole ne ya kasance yana da abin mamaki na rashin manne, fata na oxygen, bambance-bambancen launi, tabo da sauransu.

3. Girman samfurin da aka gama dole ne ya dace da bukatun zane